//定制请求的实例

//导入axios  npm install axios
import axios from 'axios';

import { ElMessage } from 'element-plus';
//定义一个变量,记录公共的前缀  ,  baseURL
const baseURL = '/api';
const instance = axios.create({baseURL})

import {useTokenStore} from '@/stores/token.js';
//添加请求拦截器
instance.interceptors.request.use(
    config=>{
        const tokenStore = useTokenStore();
        if (tokenStore.token) {
            config.headers.Authorization = 'Bearer ' + tokenStore.token;
        }
        return config;
    },
    (error)=>{
        return Promise.reject(error);
    }
)

// import{useRouter} from 'vue-router';
import router from '@/router';
//添加响应拦截器
instance.interceptors.response.use(
    result=>{
        if(result.data.code !== 0){
            return result.data;
        }
        // alert(result.data.msg?result.data.msg:'服务异常');
        ElMessage.error(result.data.msg?result.data.msg:'服务异常');
        return Promise.reject(result.data);
    },
    err=>{
        if (err.response.state===401) {
            ElMessage.error('登录过期,请重新登录');
            router.push('/login');
        }else{
            ElMessage.error('服务异常');
        }
        return Promise.reject(err);//异步的状态转化成失败的状态
    }
)

export default instance;